Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic Maps

Through signs and symbols, maps represent geographic space in a generalized and abstracted way. Cartographic research is, therefore, concerned with establishing a mutually shared set of signs and semiotic rules to communicate geospatial information successfully. While cartographers generally strive...

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Main Author: Silvia Klettner
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:ISPRS International Journal of Geo-Information
Subjects:
Online Access:https://www.mdpi.com/2220-9964/9/12/719
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author Silvia Klettner
author_facet Silvia Klettner
author_sort Silvia Klettner
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description Through signs and symbols, maps represent geographic space in a generalized and abstracted way. Cartographic research is, therefore, concerned with establishing a mutually shared set of signs and semiotic rules to communicate geospatial information successfully. While cartographers generally strive for cognitively congruent maps, empirical research has only started to explore the different facets and levels of correspondences between external cartographic representations and processes of human cognition. This research, therefore, draws attention to the principle of contextual congruence to study the correspondences between shape symbols and different geospatial content. An empirical study was carried out to explore the (in)congruence of cartographic point symbols with respect to positive, neutral, and negative geospatial topics in monothematic maps. In an online survey, 72 thematic maps (i.e., 12 map topics × 6 symbols) were evaluated by 116 participants in a between-groups design. The point symbols comprised five symmetric shapes (i.e., Circle, Triangle, Square, Rhomb, Star) and one Asymmetric Star shape. The study revealed detailed symbol-content congruences for each map topic as well as on an aggregated level, i.e., by positive, neutral, and negative topic clusters. Asymmetric Star symbols generally showed to be highly incongruent with positive and neutral topics, while highly congruent with negative map topics. Symmetric shapes, on the other hand, emerged to be of high congruence with positive and neutral map topics, whilst incongruent with negative topics. As the meaning of point symbols showed to be susceptible to context, the findings lead to the conclusion that cognitively congruent maps require profound context-specific considerations when designing and employing map symbols.
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spelling doaj.art-315d5ba9c008417ba95bb451310ed0022023-11-20T23:14:16ZengMDPI AGISPRS International Journal of Geo-Information2220-99642020-12-0191271910.3390/ijgi9120719Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic MapsSilvia Klettner0Department of Geodesy and Geoinformation, Research Division Cartography, TU Wien—Vienna University of Technology, 1040 Vienna, AustriaThrough signs and symbols, maps represent geographic space in a generalized and abstracted way. Cartographic research is, therefore, concerned with establishing a mutually shared set of signs and semiotic rules to communicate geospatial information successfully. While cartographers generally strive for cognitively congruent maps, empirical research has only started to explore the different facets and levels of correspondences between external cartographic representations and processes of human cognition. This research, therefore, draws attention to the principle of contextual congruence to study the correspondences between shape symbols and different geospatial content. An empirical study was carried out to explore the (in)congruence of cartographic point symbols with respect to positive, neutral, and negative geospatial topics in monothematic maps. In an online survey, 72 thematic maps (i.e., 12 map topics × 6 symbols) were evaluated by 116 participants in a between-groups design. The point symbols comprised five symmetric shapes (i.e., Circle, Triangle, Square, Rhomb, Star) and one Asymmetric Star shape. The study revealed detailed symbol-content congruences for each map topic as well as on an aggregated level, i.e., by positive, neutral, and negative topic clusters. Asymmetric Star symbols generally showed to be highly incongruent with positive and neutral topics, while highly congruent with negative map topics. Symmetric shapes, on the other hand, emerged to be of high congruence with positive and neutral map topics, whilst incongruent with negative topics. As the meaning of point symbols showed to be susceptible to context, the findings lead to the conclusion that cognitively congruent maps require profound context-specific considerations when designing and employing map symbols.https://www.mdpi.com/2220-9964/9/12/719visual communicationcartographycongruencesemioticsmap symbolization
spellingShingle Silvia Klettner
Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic Maps
ISPRS International Journal of Geo-Information
visual communication
cartography
congruence
semiotics
map symbolization
title Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic Maps
title_full Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic Maps
title_fullStr Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic Maps
title_full_unstemmed Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic Maps
title_short Form Follows Content: An Empirical Study on Symbol-Content (In)Congruences in Thematic Maps
title_sort form follows content an empirical study on symbol content in congruences in thematic maps
topic visual communication
cartography
congruence
semiotics
map symbolization
url https://www.mdpi.com/2220-9964/9/12/719
work_keys_str_mv AT silviaklettner formfollowscontentanempiricalstudyonsymbolcontentincongruencesinthematicmaps